Splitting machine for production of lining paper

Abstract

The invention relates to the technical field of paper slitting, and particularly discloses a slitting machine for lined paper production, which comprises an unwinding frame, a winding component and a slitting knife, the winding components comprise an upper winding component and a lower winding component, each winding component comprises a winding roller, a winding changing roller and a position changing assembly, the position changing assemblies are used for changing the positions of the winding rollers and the winding changing rollers, a plurality of pressing assemblies are arranged between each winding roller and the winding changing roller, and each pressing assembly comprises a front pressing part and a rear pressing part. Each of the front pressing part and the rear pressing part comprises a fixed plate, a left sliding plate and a right sliding plate, the left sliding plate is elastically arranged on the fixed plate in a sliding manner and abuts against the roll changing roller, the right sliding plate elastically slides on the fixed plate in a limiting manner, and when the left sliding plate slides rightwards, the right sliding plate slides rightwards, so that the clamping part clamps paper; according to the roll changing device, it can be guaranteed that cut-off paper is flatly wound on the winding roller and the roll changing roller during roll changing, and the cut-off paper roll is prevented from being scattered.

Description

Technical Field

[0001] The present invention relates to the technical field of paper slitting, and particularly to a slitter for the production of inner lining paper. Background Art

[0002] A paper slitting and rewinding machine is an industrial device used to slit large rolls of paper into specific widths and then rewind them into small rolls. It is applied in industries such as papermaking, printing, packaging, labels, and tapes. Its main function is to longitudinally cut large roll raw materials into multiple narrow-width coils, and then rewind the slit narrow strips into small rolls to ensure that the coils are neat, tight, and without wrinkles.

[0003] A Chinese patent document with the authorization announcement number CN116281360B discloses a slitter for the production of aluminum foil paper, which includes a mounting frame, a connecting rod, and a slitting knife. A connecting rod is connected to the mounting frame, and a plurality of slitting knives for slitting aluminum foil paper are rotatably connected at intervals on the connecting rod. It also includes a rotating frame, a second motor, rotating rollers, winding drums, a first tension roller, a second tension roller, an unwinding roller, sliding blocks, a third tension roller, a driving component, a cutting mechanism, and a discharging mechanism. The rotating frame is rotatably connected to the mounting frame, two rotating rollers are rotatably connected to the rotating frame, two second motors are connected to the rotating frame, the output shafts of the rotating frame are respectively connected to the adjacent rotating rollers through couplings, and winding drums for winding aluminum foil paper are detachably clamped on the rotating rollers. The first tension roller is rotatably connected to the mounting frame, the second tension roller is rotatably connected to the mounting frame, the unwinding roller is detachably clamped on the mounting frame, two sliding blocks are slidably connected to the mounting frame, damping substances are provided at the sliding connections between the sliding blocks and the mounting frame, a third tension roller is rotatably connected between the two sliding blocks, a driving component for driving the rotating frame to rotate is provided on the mounting frame, a cutting mechanism for cutting aluminum foil paper is provided on the rotating frame, and a discharging mechanism is provided on the rotating frame. In this technical solution, the rotation of the rotating rollers can wind the aluminum foil paper, the aluminum foil paper is slit by the slitting knife, then the first motor is controlled to drive the rotating frame to rotate to replace the positions of the two rotating rollers, and the electric slide rail is controlled to drive the cutting knife to cut the aluminum foil paper. Under the cooperation of the sliding hook and the discharging ring, the aluminum foil paper can be automatically discharged. In the above technical solution, the aluminum foil paper is directly cut by the cutting knife. However, in actual production, in order to ensure that the paper is wound more tightly, a certain tension is applied to the paper. When the cutting knife cuts the paper, the paper will move to both sides and curl from the cut position, and the two ends of the cut paper are difficult to be wound smoothly on the winding roller that has completed winding and the rewinding roller to be replaced. After the paper is cut, the operator still needs to fix the ends of the paper on the winding roller and the rewinding roller. Summary of the Invention

[0004] The present invention provides a slitter for producing inner lining paper, aiming to solve the problem in the related art that when the slitting device changes the roll, after the paper is cut, the paper is prone to curling, making it difficult to fix the paper on the winding roll and the roll-changing roll.

[0005] A slitter for producing inner lining paper includes: a unwind rack, a winding component and a slitting knife; there are two sets of winding components, upper and lower. Each set of winding components includes a winding roll, a roll-changing roll and a transposition component. The transposition component is used to swap the positions of the winding roll and the roll-changing roll. Between each set of winding roll and roll-changing roll, there are multiple sets of pressing components. Each set of pressing components includes front and rear pressing parts. Both the front and rear pressing parts include a fixing plate, a left sliding plate and a right sliding plate. The left sliding plate is elastically slidably arranged on the fixing plate and abuts against the roll-changing roll. The right sliding plate is slidably and elastically limited on the fixing plate. Clamping parts are arranged inside both the winding roll and the roll-changing roll. When the left sliding plate slides to the right, it causes the right sliding plate to slide to the right, and then the clamping parts clamp the paper. The fixed end of the transposition component is provided with a pushing member to make both the front and rear pressing parts rotate upward, so that the paper falls below the pressing component. A cutting knife is arranged below the fixing plate. A driving member is installed between the left sliding plate and the cutting knife to make the cutting knife cut the paper. The effects are as follows: The paper cut by the slitting knife is divided into upper and lower groups by the upper and lower two sets of winding components and wound separately. The transposition component swaps the positions of the wound winding roll and the roll-changing roll, and the upper and lower two sets of winding components do not affect each other during the transposition process. The pressing component presses the paper between the winding roll and the roll-changing roll. The left sliding plate presses the paper roll on the winding roll, and as the diameter of the paper roll on the winding roll gradually increases, the right sliding plate stores energy. After the paper is cut, the right sliding plate slides to the right and pushes the paper into the clamping part, and then the roll-changing roll can clamp the paper; when the transposition component swaps the positions of the winding roll and the roll-changing roll, the pushing member makes both the front and rear pressing parts rotate upward to form a channel. After the paper falls between the two pressing parts, the pushing member makes the front and rear pressing parts rotate from the vertical state to the horizontal state to press the paper; when the diameter of the paper roll on the winding roll increases, the driving member makes the cutting knife move towards the paper to cut the paper, so that the diameter of the paper wound on each winding wheel is basically the same.

[0006] Preferably, the left sliding plate includes a pressing plate and a sliding rod. A through hole penetrating in the left-right direction is formed on the fixing plate. One end of the sliding rod is fixedly arranged on the pressing plate, and the other end is inserted into the through hole and slides along the radial direction of the through hole. A first spring is sleeved on the outer periphery of the sliding rod. One end of the first spring abuts against the pressing plate, and the other end abuts against the fixing plate. The paper passes through the pressing plate and is wound around the winding roll; the winding roll is used to wind the paper. When the diameter of the wound paper roll slowly increases, it will push the pressing plate to move to the right. At this time, the sliding rod slides in the through hole and the first spring is compressed. After the diameter of the paper roll on the winding roll reaches a certain value, the paper is cut by the cutting knife. Preferably, the right slide plate includes a pushing plate and a connecting rod. The connecting rod is fixedly connected to the pushing plate. The connecting rod is slidably arranged in the through hole. A slider is slidably arranged in the through hole. Two ends of the slider are respectively connected with a second spring and a third spring. One end of the second spring is connected to the inner wall of the through hole and the other end is connected to the slider. One end of the third spring is connected to the slider and the other end is connected to the connecting rod. A protrusion is fixedly arranged on the connecting rod, and a stop block is arranged on the inner wall of the through hole. When the winding roller winds the paper, the protrusion on the connecting rod abuts against the stop block to prevent the pushing plate from sliding rightward when the paper exerts a thrust on the pushing plate. As the diameter of the wound paper roll gradually increases, the sliding rod slides rightward and finally contacts the slider. When the diameter of the wound paper roll continues to increase, the slider is pushed to slide rightward. At this time, the second spring is stretched. Since the pushing plate abuts against the paper, the third spring is compressed. After the paper is cut, the pushing plate loses the force exerted on it by the paper, and the pushing plate moves rightward and pushes the paper into the clamping part.

[0007] Preferably, the pressing assembly is located at the connection line between the axis of the winding roller and the axis of the roll-changing roller, and the clamping part is arranged on the diameter of the winding roller and the roll-changing roller. When the pushing plate moves rightward along the diameter of the roll-changing roller, it pushes the paper into the clamping part. The clamping part is arranged on the diameter of the winding roller and the roll-changing roller, which enables the operator to more conveniently align the pushing plate with the clamping part when replacing the winding roller and the roll-changing roller.

[0008] Preferably, a through slot running in the front-back direction is formed in the winding roller. The clamping part includes a clamping block fixedly arranged in the through slot and an elastic member. A slope is formed on the left side of the clamping block. When the pushing plate moves rightward, it contacts the slope of the clamping block and pushes the clamping block upward, thereby compressing the elastic member. Then the pushing plate pushes the cut paper into the through slot. When the pushing plate moves leftward, it disengages from the through slot. At this time, the paper remains in the clamping slot, and the elastic member resets, causing the clamping block to move downward, thereby firmly clamping the paper.

[0009] Preferably, the elastic member includes an installation slot and a fourth spring. The installation slot is formed in the through slot and arranged in the up-down direction. The clamping block is slidably arranged in the installation slot. One end of the fourth spring is connected to the inner wall of the installation slot and the other end is connected to the clamping block. When the pushing plate pushes the clamping block upward, the fourth spring is compressed. When the pushing plate moves out of the through slot, the fourth spring immediately resets, driving the clamping block to descend.

[0010] Preferably, the outer surface of the clamping block and the inner surface of the through slot are both friction surfaces, and the outer surface of the pushing plate is a smooth surface. When the pushing plate separates from between the clamping block and the through slot, with the help of the rubber layers pre-set on the clamping block and the through slot, the paper can fall between the clamping block and the through slot, so that the pushing plate can smoothly disengage from the paper.

[0011] Preferably, gears are provided on the fixed plates of the front and rear pressing parts. The pushing member includes two electric telescopic rods. The movable ends of the two electric telescopic rods are both equipped with racks. The two racks are respectively engaged with the gears on the front fixed plate and the rear fixed plate. The electric telescopic rods are installed on the position-changing assembly. By driving the racks to move with the movable ends of the electric telescopic rods, the front-and-back movement of the racks causes the gears to rotate, thereby driving the fixed plates to deflect upward. Before the winding roller and the rewinding roller are swapped positions by the position-changing assembly, the fixed plates rotate upward from the horizontal position to the vertical state, so as to form a channel between the front and rear fixed plates. After the paper falls into the channel, the fixed plates rotate back to the horizontal state to press the paper.

[0012] Preferably, a vertical limiting groove is provided at the fixed end of the position-changing assembly. The cutting knife is slidably arranged in the limiting groove, and a compression spring is installed between the cutting knife and the limiting groove. The driving member includes a driving rod fixedly arranged on the left sliding plate, and a driving block is fixedly arranged below the driving rod. When the diameter of the paper roll on the winding roller gradually increases, the left sliding plate slides to the right, driving the driving rod and the driving block to move to the right together. When the driving block contacts the cutting knife, the cutting knife is pushed downward, and the compression spring is compressed accordingly. After the driving block passes over the cutting knife, the cutting knife cuts the paper under the reset action of the compression spring.

[0013] Preferably, a limiting roller is installed between the slitting knife and the winding member. The limiting roller includes two upper and lower ones. Two upper and lower groups of tension wheels are installed between the limiting roller and the winding member. The two groups of tension wheels respectively tension the paper on the two upper and lower groups of winding members. An electric rod is installed at the fixed end of the position-changing assembly. By driving the tension wheels to move up and down through the electric rod, the tension adjustment of the paper is realized.

[0014] With the above technical solutions, the beneficial effects of the present invention are as follows: 1. When cutting the paper, the paper is accurately cut by the slitting knife, and the cut paper is respectively wound by the two upper and lower groups of winding members. After the winding roller finishes winding, the positions of the winding roller and the rewinding roller are swapped by means of the position-changing assembly, and the winding rollers and the rewinding rollers on the two upper and lower groups of winding members do not interfere with each other during the position-changing process; 2. A pressing assembly is arranged between the winding roller and the rewinding roller. When the diameter of the paper roll on the winding roller increases, the left sliding plate moves to the right and stores energy in the right sliding plate. After the cutting knife cuts the paper between the winding roller and the rewinding roller, the left sliding plate abuts against the winding roller, effectively preventing the paper roll from being scattered, and the right sliding plate enters the clamping part to ensure that the paper is firmly clamped by the clamping part on the rewinding roller. When the winding roller is disassembled, the right sliding plate slides to the left and disengages from the clamping part; 3. As the diameter of the paper roll on the winding roller increases, the left sliding plate moves to the right, simultaneously driving the cutting knife to move downward and storing energy in the compression spring. After the driving block on the left sliding plate passes over the cutting knife, the cutting knife quickly resets under the action of the compression spring to accurately cut the paper; 4. After the paper is cut, the left slide plate presses tightly against the paper roll on the winding roller to prevent the paper roll from scattering. The operator rotates the winding roller to neatly wind the paper between the winding roller and the cutting knife onto the winding roller; the roll-changing roller rotates to ensure that the paper between the roll-changing roller and the cutting knife is orderly wound onto the roll-changing roller; 5. When the winding roller and the roll-changing roller are exchanged in position by the position-changing assembly, the fixing plates on the front and rear pressing parts are rotated from the horizontal state to the vertical state through the driving part to form a channel for the paper to fall. After the position change is completed, the fixing plates return from the vertical state to the horizontal state to accurately position the paper. Description of the Drawings

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0016] Figure 2 It is a structural schematic diagram of the pressing assembly of the present invention.

[0017] Figure 3 It is a structural schematic diagram of the driving part of the present invention.

[0018] Figure 4 It is a structural schematic diagram of the left slide plate and the right slide plate of the present invention.

[0019] Figure 5 It is a structural schematic diagram of the pushing part of the present invention.

[0020] Figure 6 It is a structural schematic diagram of the clamping part of the present invention.

[0021] Figure 7 It is a structural schematic diagram of the pushing part and the position-changing assembly of the present invention.

[0022] Reference Signs: 1. Winding component; 11. Winding roller; 12. Roll-changing roller; 13. Position-changing assembly; 131. Fixed frame; 132. Rotating rod; 133. Driving motor; 134. Connecting plate; 14. Groove; 2. Slitting knife; 3. Pressing assembly; 31. Fixed plate; 311. Through hole; 32. Left slide plate; 321. Pressing plate; 322. Sliding rod; 323. First spring; 33. Right slide plate; 331. Pushing plate; 332. Connecting rod; 333. Second spring; 334. Third spring; 335. Protrusion; 336. Stopper; 4. Pushing part; 41. Electric telescopic rod; 42. Gear; 43. Rack; 5. Driving part; 51. Limit groove; 52. Compression spring; 53. Driving rod; 54. Driving block; 6. Clamping part; 61. Clamping block; 62. Elastic part; 621. Installation groove; 622. Fourth spring; 7. Cutting knife; 8. Limiting roller; 9. Tensioning wheel; 10. Electric rod. Detailed Embodiments

[0023] Embodiments of the present invention will be described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0024] As Figures 1-6 shown, a slitter for inner liner paper production includes an unwind stand, a winding component 1, and a slitting knife 2. The unwind stand, the slitting knife 2, and the winding component 1 are arranged from right to left respectively. When slitting the paper, the mother roll of the paper is rotatably arranged on the unwind stand. After the slitting knife 2 slits the paper, it is then wound into multiple sub-rolls by the winding component 1.

[0025] There are two sets of upper and lower winding components 1. Each set of winding components 1 includes a winding roller 11, a roll-changing roller 12, and a transposition component 13. A pressing component 3 is installed between the winding roller 11 and the roll-changing roller 12. When winding the paper, the paper is wound by the winding roller 11. After the winding on the winding roller 11 is completed, the roll-changing roller 12 is moved to the position of the winding roller 11 for winding through the transposition component 13, and a new roll-changing roller 12 is placed at the position of the original roll-changing roller 12 for roll change. A pressing component 3 is arranged between the winding roller 11 and the roll-changing roller 12 to press the paper. After the paper is cut off, the pressing component 3 applies pressure to the paper to prevent the paper from bending.

[0026] The transposition component 13 includes a fixed frame 131, a rotating rod 132, and a driving motor 133. The driving motor 133 is installed on the fixed frame 131, and the rotating rod 132 is installed at the output end of the driving motor 133. The winding roller 11 and the roll-changing roller 12 are respectively installed at both ends of the rotating rod 132. In the initial state, the winding roller 11 is installed on the left side of the rotating rod 132, and the roll-changing roller 12 is installed on the right side of the rotating rod 132. When the paper wound on the winding roller 11 reaches a certain thickness, the paper is cut off. The driving motor 133 rotates to drive the rotating rod 132 to rotate, and then the roll-changing roller 12 rotates to the position of the winding roller 11 to complete the roll change.

[0027] The winding roller 11 includes a winding motor, a winding shaft and a winding wheel. The winding shaft is installed at the output end of the winding motor, and the winding wheel is fixedly arranged on the winding shaft. The rotation of the winding motor drives the winding shaft to rotate, thereby driving the winding wheel to rotate; the reel-changing roller 12 includes a reel-changing motor, a reel-changing shaft and a reel-changing wheel. The reel-changing shaft is installed at the output end of the reel-changing motor and is fixedly arranged on the reel-changing shaft. The rotation of the reel-changing motor drives the reel-changing shaft to rotate, thereby driving the reel-changing wheel to rotate; the reel-changing wheel and the reel-changing wheel aligned left and right on the same reeling component 1 form a group of reel-changing wheel groups. There are multiple groups of reel-changing wheel groups on each group of reeling components 1. The reel-changing wheel groups on the upper and lower groups of reel-ups 11 are staggered one by one in the front and rear direction. The reel-changing wheel groups on the upper and lower groups of reel-ups 11 are staggered in the front and rear direction to avoid interference between the operations of adjacent pressing components 3.

[0028] The paper is then clamped in the cam 32 and the paper is then moved to the left by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the right by the user, and the paper is then moved to the The right slide 33 abuts against the reel 12, and when the reel 12 rotates, the paper between the cutting point and the reel 12 can be wound around the reel 12.

[0029] The left slide plate 32 includes a pressing plate 321 and a sliding rod 322. A through hole 311 penetrating in the left-right direction is formed in the fixing plate 31. One end of the sliding rod 322 is fixedly arranged on the pressing plate 321, and the other end is inserted into the through hole 311 and slides along the radial direction of the through hole 311. A first spring 323 is sleeved on the outer periphery of the sliding rod 322. One end of the first spring 323 abuts against the pressing plate 321, and the other end abuts against the fixing plate 31. The paper passes through the pressing plate 321 and is wound around the winding roller 11; the paper is wound by the winding roller 11. When the diameter of the wound paper roll gradually increases, it will push the pressing plate 321 to move to the right. At this time, the sliding rod 322 slides in the through hole 311 and the first spring 323 is compressed. When the diameter of the paper roll on the winding roller 11 reaches a certain value, the paper is cut off by the cutting knife 7.

[0030] The right slide plate 33 includes a push plate 331 and a connecting rod 332. The connecting rod 332 is fixedly connected to the push plate 331. The connecting rod 332 is slidably disposed in the through hole 311. A slider is slidably disposed in the through hole 311. Two ends of the slider are respectively connected with a second spring 333 and a third spring 334. One end of the second spring 333 is connected to the inner wall of the through hole 311 and the other end is connected to the slider. One end of the third spring 334 is connected to the slider and the other end is connected to the connecting rod 332. A protrusion 335 is fixedly disposed on the connecting rod 332. A stop block 336 is disposed on the inner wall of the through hole 311. In the initial state, when the winding roller 11 winds the paper, the protrusion 335 on the connecting rod 332 abuts against the stop block 336 to prevent the push plate 331 from sliding rightward when the paper exerts a thrust on the push plate 331. When the diameter of the wound paper roll gradually increases, the sliding rod 322 slides rightward and finally contacts the slider. When the diameter of the wound paper roll further increases, the slider is pushed to slide rightward. At this time, the second spring 333 is stretched. Since the push plate 331 abuts against the paper, the third spring 334 is compressed. After the paper is cut off, the push plate 331 loses the force exerted on it by the paper, and the push plate 331 moves rightward and pushes the paper into the clamping portion 6. The paper is clamped by the clamping portion 6 on the rewinding roller 12. When the rewinding roller 12 rotates, the paper is pushed to contact the rewinding roller 12, so that the paper between the cutting knife 7 and the rewinding roller 12 can be tightly wound around the rewinding roller 12. At this time, the left slide plate 32 abuts against the winding roller 11, and the wound paper roll on the winding roller 11 will not be scattered. The winding roller 11 can be rotated to completely wind the paper between the winding roller 11 and the cutting knife 7 around the winding roller 11, and then the paper on the winding roller 11 is pasted with tape to prevent scattering. Then the winding roller 11 is disassembled. After the winding roller 11 is disassembled, the sliding rod 322 returns to its original position after losing the thrust, and at the same time, the slider also loses the thrust of the push rod and returns to its original position under the action of the second spring 333. The reset of the slider causes the push plate 331 to disengage from the clamping portion 6, and the clamping portion 6 clamps the paper. At this time, the rewinding roller 12 can rotate to continue winding the paper. The rewinding roller 12 is adjusted to the position of the original winding roller 11 through the transposition assembly 13, and a new winding roller 11 is replaced on the original winding roller 11 and transposed to the position of the original rewinding roller 12.

[0031] The pressing assembly 3 is located at the connection line between the axis of the winding roller 11 and the axis of the rewinding roller 12. The clamping portion 6 is arranged on the diameter of the winding roller 11 and the rewinding roller 12. When the push plate 331 moves rightward, it moves along the diameter of the rewinding roller 12 and pushes the paper into the clamping portion 6, and is arranged on the diameter of the winding roller 11 and the rewinding roller 12, enabling the operator to better align the clamping portion 6 with the push plate 331 when replacing the winding roller 11 and the rewinding roller 12.

[0032] The winding wheels on the winding roller 11 and the roll-changing roller 12 are both provided with slots 14 extending in the front-rear direction. The clamping part 6 includes a clamping block 61 fixedly arranged in the slot 14 and an elastic member 62. The left side of the clamping block 61 is provided with an inclined surface. When the push plate 331 moves to the right, it contacts the inclined surface of the clamping block 61 and pushes the clamping block 61 to move upward, thereby compressing the elastic member 62. The push plate 331 pushes the cut paper into the slot 14. When the push plate 331 moves to the left, it disengages from the slot 14. At this time, the paper remains in the slot 14, and the elastic member 62 resets to make the clamping block 61 move downward to clamp the paper. It should be noted that the outer surface of the clamping block 61 and the inner surface of the slot 14 are both friction surfaces, and the outer surface of the push plate 331 is a smooth surface. Specifically, rubber layers are provided on the outer surface of the clamping block 61 and the inner surface of the slot 14 to increase the friction force, and the outer surface of the push plate 331 is polished to reduce the friction force. When the push plate 331 disengages from between the clamping block 61 and the slot 14, the rubber layers provided on the clamping block 61 and the slot 14 cause the paper to fall between the clamping block 61 and the slot 14, and the push plate 331 disengages from the paper. To increase the clamping force of the clamping block 61 on the paper, a clamping groove is provided on the inner bottom surface of the slot 14. The clamping groove cooperates with the clamping block 61. When the clamping block 61 moves downward, the paper is pressed into the clamping groove to clamp the paper.

[0033] The elastic member 62 includes an installation groove 621 and a fourth spring 622. The installation groove 621 is opened in the slot 14 and arranged in the up-down direction. The clamping block 61 is slidably arranged in the installation groove 621. One end of the fourth spring 622 is connected to the inner wall of the installation groove 621, and the other end is connected to the clamping block 61. When the push plate 331 pushes the clamping block 61 to move upward, the fourth spring 622 is compressed. When the push plate 331 moves out of the slot 14, the fourth spring 622 resets and makes the clamping block 61 descend.

[0034] A pushing member 4 is provided on the fixed frame 131 to make the front and rear pressing parts rotate upward so that the paper falls below the pressing assembly 3. Gear 42 is provided on the fixing plate 31 of the front and rear pressing parts. The pushing member 4 includes two electric telescopic rods 41. The movable ends of the two electric telescopic rods 41 are both installed with racks 43. The two racks 43 are respectively engaged with the gears 42 on the front fixing plate 31 and the rear fixing plate 31. The electric telescopic rods 41 are installed on the transposition assembly 13. The movement of the movable end of the electric telescopic rod 41 drives the rack 43 to move in the front-rear direction. The front-rear movement of the rack 43 makes the gear 42 rotate, thereby driving the fixing plate 31 to deflect upward. Before the transposition assembly 13 exchanges the positions of the winding roller 11 and the roll-changing roller 12, the fixing plate 31 rotates from the horizontal position to the vertical state, forming a channel between the front and rear fixing plates 31. After the paper falls into the channel, the fixing plate 31 rotates to the horizontal state again to press the paper.

[0035] A cutting knife 7 is provided on each pressing component 3. A driving member 5 is installed between the two left sliding plates 32 on each pressing component 3 and the cutting knife 7 to cut the paper by the cutting knife 7. A connecting plate 134 is provided between the fixing frames 131, and the fixing plates 31 are all installed on the connecting plate 134; in a specific embodiment of the present invention, mounting blocks are provided on the front side of the front fixing plate 31 and the rear side of the rear fixing plate 31. A limiting groove 51 extending in the up and down direction is formed on each mounting block. The cutting knife 7 is located between the two limiting grooves 51. The length of the cutting knife 7 is greater than the width of the paper after being slit. The cutting knife 7 is slidably arranged up and down in the limiting groove 51. A compression spring 52 is installed between the cutting knife 7 and the two limiting grooves 51 respectively. The two driving members 5 both include driving rods 53 fixedly arranged on the left sliding plates 32. Driving blocks 54 are fixedly arranged below the driving rods 53. The two driving blocks 54 are respectively abutted against the front and rear ends of the cutting knife 7; when the diameter of the paper roll on the winding roller 11 gradually increases, the left sliding plate 32 slides to the right and makes the driving rod 53 and the driving block 54 move to the right. When the driving block 54 contacts the cutting knife 7, it pushes the cutting knife 7 to move downward and the compression spring 52 is compressed. When the driving block 54 passes over the cutting knife 7, the cutting knife 7 resets under the action of the compression spring 52. When the compression spring 52 resets, it changes from the compressed state to the extended state and then gradually returns to its original length, thereby driving the cutting knife 7 to move upward a certain distance from the initial position to cut the paper. It should be noted that when the winding roller 11 winds the paper, the paper is close to the cutting edge of the cutting knife 7 so that the cutting knife 7 can cut the paper when resetting. In other embodiments of the present invention, an electric push rod is installed on the cutting knife 7, and the cutting knife 7 is pushed by the electric push rod to move towards the paper to cut the paper.

[0036] A limiting roller 8 is installed between the slitting knife 2 and the winding component 1. The limiting roller 8 includes two upper and lower ones. Two upper and lower groups of tension wheels 9 are installed between the limiting roller 8 and the winding component 1. The two groups of tension wheels 9 respectively tension the paper on the two upper and lower groups of winding components 1. The fixed end of the transposition component 13 is installed with an electric rod 10, and the tension wheel 9 is installed at the movable end of the electric rod 10. The paper is tensioned by driving the tension wheel 9 to move up and down by the electric rod 10.

[0037] The working principle of the present invention: When cutting paper, the paper is slit by the slitting knife 2. After slitting, the paper passes through the upper and lower groups of winding components 1 for winding respectively. When the winding wheel on the winding roller 11 rotates to wind the paper, the winding wheel on the roll-changing roller 12 does not move. After the winding roller 11 finishes winding, the positions of the winding roller 11 and the roll-changing roller 12 are exchanged through the position-changing component 13, and the winding rollers 11 and the roll-changing rollers 12 on the upper and lower groups of winding components 1 do not affect each other during position exchange; a pressing component 3 is arranged between the winding roller 11 and the roll-changing roller 12. When the diameter of the paper roll on the winding roller 11 increases, the left slide plate 32 moves to the right and the right slide plate 33 is energized. After the cutting knife 7 cuts the paper between the winding roller 11 and the roll-changing roller 12, the left slide plate 32 abuts against the winding roller 11 to prevent the paper roll on the winding roller 11 from being scattered, and the right slide plate 33 enters the clamping part 6, so that the paper is clamped by the clamping part 6 on the roll-changing roller 12. After the winding roller 11 is disassembled, the right slide plate 33 slides to the left and disengages from the clamping part 6; when the diameter of the paper roll on the winding roller 11 increases, the left slide plate 32 moves to the right, the cutting knife 7 moves downward and the compression spring 52 is energized. After the driving block 54 on the left slide plate 32 passes over the cutting knife 7, the cutting knife 7 resets under the action of the compression spring 52 and cuts the paper; after the paper is cut, the left slide plate 32 abuts against the paper roll on the winding roller 11 to prevent the paper roll from being scattered. The operator rotates the winding roller 11 to wind the paper between the winding roller 11 and the cutting knife 7 onto the winding roller 11, and when the roll-changing roller 12 rotates, the paper between the roll-changing roller 12 and the cutting knife 7 is wound onto the roll-changing roller 12; when the position-changing component 13 exchanges the positions of the winding roller 11 and the roll-changing roller 12, by arranging the driving part 5, the fixing plates 31 on the front and rear pressing parts rotate from the horizontal state to the vertical state to form a channel for the paper to fall into. After the position exchange is completed, the fixing plates 31 change from the vertical state to the horizontal state to position the paper.

[0038] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A slitter for inner lining paper production, comprising an unwinding rack, a winding component (1) and a slitting knife (2); characterized in that: There are two sets of upper and lower winding components (1). Each set of winding components (1) includes a winding roller (11), a roll-changing roller (12) and a position-changing component (13). The position-changing component (13) is used to exchange the positions of the winding roller (11) and the roll-changing roller (12). A plurality of pressing components (3) are arranged between each set of winding roller (11) and roll-changing roller (12). Each set of pressing components (3) includes front and rear pressing parts. The front and rear pressing parts both include a fixing plate (31), a left sliding plate (32) and a right sliding plate (33). The left sliding plate (32) is elastically slidably arranged on the fixing plate (31) and abuts against the roll-changing roller (12). The right sliding plate (33) is slidably and elastically limited on the fixing plate (31). Clamping parts (6) are arranged inside both the winding roller (11) and the roll-changing roller (12). When the left sliding plate (32) slides to the right, the right sliding plate (33) slides to the right, and then the clamping parts (6) clamp the paper. The fixed end of the position-changing component (13) is provided with a pushing part (4) to change both the front and rear pressing parts from a horizontal state to a vertical state, so that the paper falls between the front and rear pressing parts. A cutting knife (7) is arranged on the fixing plate (31). A driving component (5) is installed between the left sliding plate (32) and the cutting knife (7) to cut the paper by the cutting knife (7).

2. The slitter for inner lining paper production according to claim 1, characterized in that, The left sliding plate (32) includes a pressing plate (321) and a sliding rod (322). A through hole (311) penetrating in the left-right direction is formed on the fixing plate (31). One end of the sliding rod (322) is fixedly arranged on the pressing plate (321), and the other end is inserted into the through hole (311) and slides along the radial direction of the through hole (311). A first spring (323) is sleeved on the outer periphery of the sliding rod (322). One end of the first spring (323) abuts against the pressing plate (321), and the other end abuts against the fixing plate (31). The paper passes through the pressing plate (321) and then winds around the winding roller (11).

3. The slitter for inner liner paper production according to claim 2, characterized in that, The right sliding plate (33) includes a pushing plate (331) and a connecting rod (332). The connecting rod (332) is fixedly connected to the pushing plate (331). The connecting rod (332) is slidably arranged in the through hole (311). A sliding block is slidably arranged in the through hole (311). Two ends of the sliding block are respectively connected with a second spring (333) and a third spring (334). One end of the second spring (333) is connected to the inner wall of the through hole (311), and the other end is connected to the sliding block. One end of the third spring (334) is connected to the sliding block, and the other end is connected to the connecting rod (332). A protrusion (335) is fixedly arranged on the connecting rod (332), and a stop block (336) is arranged on the inner wall of the through hole (311).

4. The slitter for inner liner paper production according to claim 3, characterized in that, The pressing component (3) is located at the connection line between the axis of the winding roller (11) and the axis of the roll-changing roller (12), and the clamping part (6) is arranged on the diameter of the winding roller (11) and the roll-changing roller (12).

5. The slitter for inner liner paper production according to claim 4, characterized in that, Both the rewinding roller (11) and the roll-changing roller (12) are provided with slots (14) running through in the front-rear direction. The clamping part (6) includes a clamping block (61) fixedly arranged in the slot (14) and an elastic member (62). A bevel surface is provided on the left side of the clamping block (61).

6. The slitter for producing inner liner paper according to claim 5, characterized in that, The elastic member (62) includes an installation groove (621) and a fourth spring (622). The installation groove (621) is arranged in the slot (14) in the up-down direction. The clamping block (61) is slidably arranged in the installation groove (621). One end of the fourth spring (622) is connected to the inner wall of the installation groove (621), and the other end is connected to the clamping block (61).

7. The slitter for inner liner paper production according to claim 5, wherein The outer surface of the clamping block (61) and the inner surface of the slot (14) are both friction surfaces, and the outer surface of the push plate (331) is a smooth surface.

8. The slitter for inner liner paper production according to claim 1, characterized in that, Gears (42) are arranged on the fixed plates (31) of the front and rear pressing parts. The pushing member (4) includes two electric telescopic rods (41). Rack bars (43) are installed at the movable ends of the two electric telescopic rods (41). The two rack bars (43) are respectively meshed with the gears (42) on the front fixed plate (31) and the rear fixed plate (31). The electric telescopic rods (41) are installed on the position-changing assembly (13).

9. The slitter for inner lining paper production according to claim 1, characterized in that, A vertical limiting groove (51) is provided at the fixed end of the position-changing assembly (13). The cutting knife (7) is slidably arranged in the limiting groove (51). A compression spring (52) is installed between the cutting knife (7) and the limiting groove (51). The driving member (5) includes a driving rod (53) fixedly arranged on the left slide plate (32), and a driving block (54) is fixedly arranged below the driving rod (53).

10. The slitter for inner lining paper production according to any one of claims 1-9, characterized in that, A limiting roller (8) is installed between the slitting knife (2) and the winding component (1). The limiting roller (8) includes two upper and lower ones. Two upper and lower groups of tension wheels (9) are installed between the limiting roller (8) and the winding component (1). The two groups of tension wheels (9) respectively tension the paper on the two upper and lower groups of winding components (1). An electric rod (10) is installed at the fixed end of the position-changing assembly (13).

Images